PFAS Comply

BLACK HAWK WATER USER DISTRICT

PWSID: SD4600043 · BLACK HAWK, SD · Serving 4,500 people

Type: CWSOwner: LSource: GW
Compliant

All PFAS compounds below EPA Maximum Contaminant Levels.

Key contaminants vs MCL

EPA MCL: 4 ppt (parts per trillion) for PFOA and PFOS individually. Compliance deadline: 2031-12-31

Detection summary

0
PFAS compounds detected
N/A ppt
Highest single detection
2025-07-01
Latest sample date
partial
Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5)

ContaminantResult (ppt)MCL (ppt)StatusSample date
PFOSND4Below MRL2025-01-08
PFNAND10Below MRL2025-01-08
PFMPAND—Below MRL2025-01-08
PFHpAND—Below MRL2025-01-08
lithiumND—Below MRL2025-01-08
PFOAND4Below MRL2025-01-08
NEtFOSAAND—Below MRL2025-01-08
PFHxSND10Below MRL2025-01-08
NFDHAND—Below MRL2025-01-08
PFPeSND—Below MRL2025-01-08
PFHpSND—Below MRL2025-01-08
PFTrDAND—Below MRL2025-01-08
PFTAND—Below MRL2025-01-08
NMeFOSAAND—Below MRL2025-01-08
PFBAND—Below MRL2025-01-08
PFEESAND—Below MRL2025-01-08
PFBSND—Below MRL2025-01-08
PFMBAND—Below MRL2025-01-08
PFDAND—Below MRL2025-01-08
4:2 FTSND—Below MRL2025-01-08
6:2 FTSND—Below MRL2025-01-08
8:2 FTSND—Below MRL2025-01-08
PFPeAND—Below MRL2025-01-08
HFPO-DAND10Below MRL2025-01-08
ADONAND—Below MRL2025-01-08
9Cl-PF3ONSND—Below MRL2025-01-08
11Cl-PF3OUdSND—Below MRL2025-01-08
PFUnAND—Below MRL2025-01-08
PFHxAND—Below MRL2025-01-08
PFDoAND—Below MRL2025-01-08
PFHpAND—Below MRL2025-07-01
ADONAND—Below MRL2025-07-01
PFHxSND10Below MRL2025-07-01
HFPO-DAND10Below MRL2025-07-01
PFBSND—Below MRL2025-07-01
PFNAND10Below MRL2025-07-01
NMeFOSAAND—Below MRL2025-07-01
NEtFOSAAND—Below MRL2025-07-01
PFTAND—Below MRL2025-07-01
PFPeAND—Below MRL2025-07-01
PFOSND4Below MRL2025-07-01
PFTrDAND—Below MRL2025-07-01
PFMBAND—Below MRL2025-07-01
PFHpSND—Below MRL2025-07-01
8:2 FTSND—Below MRL2025-07-01
PFOAND4Below MRL2025-07-01
lithiumND—Below MRL2025-07-01
PFPeSND—Below MRL2025-07-01
NFDHAND—Below MRL2025-07-01
PFEESAND—Below MRL2025-07-01
PFMPAND—Below MRL2025-07-01
PFUnAND—Below MRL2025-07-01
6:2 FTSND—Below MRL2025-07-01
PFDAND—Below MRL2025-07-01
PFBAND—Below MRL2025-07-01
9Cl-PF3ONSND—Below MRL2025-07-01
11Cl-PF3OUdSND—Below MRL2025-07-01
4:2 FTSND—Below MRL2025-07-01
PFDoAND—Below MRL2025-07-01
PFHxAND—Below MRL2025-07-01
9Cl-PF3ONSND—Below MRL2025-01-08
11Cl-PF3OUdSND—Below MRL2025-01-08
PFUnAND—Below MRL2025-01-08
PFHxAND—Below MRL2025-01-08
PFDoAND—Below MRL2025-01-08
PFDAND—Below MRL2025-01-08
PFNAND10Below MRL2025-01-08
PFOSND4Below MRL2025-01-08
ADONAND—Below MRL2025-01-08
PFEESAND—Below MRL2025-01-08
lithiumND—Below MRL2025-01-08
PFHxSND10Below MRL2025-01-08
PFHpAND—Below MRL2025-01-08
PFBSND—Below MRL2025-01-08
PFOAND4Below MRL2025-01-08
NFDHAND—Below MRL2025-01-08
PFTAND—Below MRL2025-01-08
PFTrDAND—Below MRL2025-01-08
NEtFOSAAND—Below MRL2025-01-08
NMeFOSAAND—Below MRL2025-01-08
PFPeAND—Below MRL2025-01-08
PFPeSND—Below MRL2025-01-08
HFPO-DAND10Below MRL2025-01-08
PFMBAND—Below MRL2025-01-08
PFMPAND—Below MRL2025-01-08
8:2 FTSND—Below MRL2025-01-08
4:2 FTSND—Below MRL2025-01-08
6:2 FTSND—Below MRL2025-01-08
PFBAND—Below MRL2025-01-08
PFHpSND—Below MRL2025-01-08
9Cl-PF3ONSND—Below MRL2025-07-01
PFDoAND—Below MRL2025-07-01
PFTAND—Below MRL2025-07-01
PFTrDAND—Below MRL2025-07-01
NEtFOSAAND—Below MRL2025-07-01
PFBSND—Below MRL2025-07-01
PFPeAND—Below MRL2025-07-01
PFMBAND—Below MRL2025-07-01
PFEESAND—Below MRL2025-07-01
NFDHAND—Below MRL2025-07-01
PFHpAND—Below MRL2025-07-01
PFHxSND10Below MRL2025-07-01
PFNAND10Below MRL2025-07-01
PFOSND4Below MRL2025-07-01
HFPO-DAND10Below MRL2025-07-01
PFDAND—Below MRL2025-07-01
NMeFOSAAND—Below MRL2025-07-01
PFHxAND—Below MRL2025-07-01
PFUnAND—Below MRL2025-07-01
11Cl-PF3OUdSND—Below MRL2025-07-01
ADONAND—Below MRL2025-07-01
PFBAND—Below MRL2025-07-01
6:2 FTSND—Below MRL2025-07-01
4:2 FTSND—Below MRL2025-07-01
8:2 FTSND—Below MRL2025-07-01
PFMPAND—Below MRL2025-07-01
PFPeSND—Below MRL2025-07-01
PFHpSND—Below MRL2025-07-01
lithiumND—Below MRL2025-07-01
PFOAND4Below MRL2025-07-01
PFDoAND—Below MRL2025-03-11
PFBAND—Below MRL2025-03-11
6:2 FTSND—Below MRL2025-03-11
4:2 FTSND—Below MRL2025-03-11
8:2 FTSND—Below MRL2025-03-11
PFPeAND—Below MRL2025-03-11
PFMBAND—Below MRL2025-03-11
PFEESAND—Below MRL2025-03-11
PFBSND—Below MRL2025-03-11
PFHxSND10Below MRL2025-03-11
PFMPAND—Below MRL2025-03-11
PFOSND4Below MRL2025-03-11
HFPO-DAND10Below MRL2025-03-11
PFDAND—Below MRL2025-03-11
PFHpAND—Below MRL2025-03-11
PFHxAND—Below MRL2025-03-11
PFUnAND—Below MRL2025-03-11
11Cl-PF3OUdSND—Below MRL2025-03-11
NFDHAND—Below MRL2025-03-11
PFPeSND—Below MRL2025-03-11
PFHpSND—Below MRL2025-03-11
lithiumND—Below MRL2025-03-11
PFTrDAND—Below MRL2025-03-11
NEtFOSAAND—Below MRL2025-03-11
PFTAND—Below MRL2025-03-11
NMeFOSAAND—Below MRL2025-03-11
PFOAND4Below MRL2025-03-11
PFNAND10Below MRL2025-03-11
9Cl-PF3ONSND—Below MRL2025-03-11
ADONAND—Below MRL2025-03-11
6:2 FTSND—Below MRL2025-07-01
PFBAND—Below MRL2025-07-01
HFPO-DAND10Below MRL2025-07-01
ADONAND—Below MRL2025-07-01
PFHpAND—Below MRL2025-07-01
PFHxSND10Below MRL2025-07-01
NMeFOSAAND—Below MRL2025-07-01
PFUnAND—Below MRL2025-07-01
PFTAND—Below MRL2025-07-01
PFTrDAND—Below MRL2025-07-01
NEtFOSAAND—Below MRL2025-07-01
11Cl-PF3OUdSND—Below MRL2025-07-01
PFNAND10Below MRL2025-07-01
lithiumND—Below MRL2025-07-01
PFBSND—Below MRL2025-07-01
PFHpSND—Below MRL2025-07-01
PFPeSND—Below MRL2025-07-01
NFDHAND—Below MRL2025-07-01
PFEESAND—Below MRL2025-07-01
PFMBAND—Below MRL2025-07-01
4:2 FTSND—Below MRL2025-07-01
PFDAND—Below MRL2025-07-01
PFHxAND—Below MRL2025-07-01
PFOAND4Below MRL2025-07-01
PFOSND4Below MRL2025-07-01
PFPeAND—Below MRL2025-07-01
PFMPAND—Below MRL2025-07-01
8:2 FTSND—Below MRL2025-07-01
9Cl-PF3ONSND—Below MRL2025-07-01
PFDoAND—Below MRL2025-07-01

Next steps